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/***************************************************************************** |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* - Global definitions - |
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* |
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* Copyright(C) 2002-2010 Michael Militzer <michael@xvid.org> |
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* |
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* This program is free software ; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation ; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY ; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program ; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* $Id: global.h,v 1.27 2010-11-28 15:18:21 Isibaar Exp $ |
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* |
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****************************************************************************/ |
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#ifndef _GLOBAL_H_ |
#ifndef _GLOBAL_H_ |
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#define _GLOBAL_H_ |
#define _GLOBAL_H_ |
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#include "xvid.h" |
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#include "portab.h" |
#include "portab.h" |
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/* --- macroblock stuff --- */ |
/* --- macroblock modes --- */ |
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#define MODE_INTER 0 |
#define MODE_INTER 0 |
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#define MODE_INTER_Q 1 |
#define MODE_INTER_Q 1 |
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#define MODE_INTER4V 2 |
#define MODE_INTER4V 2 |
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#define MODE_INTRA 3 |
#define MODE_INTRA 3 |
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#define MODE_INTRA_Q 4 |
#define MODE_INTRA_Q 4 |
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#define MODE_STUFFING 7 |
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#define MODE_NOT_CODED 16 |
#define MODE_NOT_CODED 16 |
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#define MODE_NOT_CODED_GMC 17 |
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/* --- bframe specific --- */ |
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#define MODE_DIRECT 0 |
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#define MODE_INTERPOLATE 1 |
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#define MODE_BACKWARD 2 |
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#define MODE_FORWARD 3 |
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#define MODE_DIRECT_NONE_MV 4 |
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#define MODE_DIRECT_NO4V 5 |
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/* |
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* vop coding types |
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* intra, prediction, backward, sprite, not_coded |
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*/ |
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#define I_VOP 0 |
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#define P_VOP 1 |
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#define B_VOP 2 |
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#define S_VOP 3 |
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#define N_VOP 4 |
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/* convert mpeg-4 coding type i/p/b/s_VOP to XVID_TYPE_xxx */ |
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static __inline int |
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coding2type(int coding_type) |
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{ |
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return coding_type + 1; |
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} |
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/* convert XVID_TYPE_xxx to bitstream coding type i/p/b/s_VOP */ |
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static __inline int |
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type2coding(int xvid_type) |
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{ |
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return xvid_type - 1; |
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} |
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typedef struct |
typedef struct |
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{ |
{ |
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int x; |
int x; |
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int y; |
int y; |
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} VECTOR; |
} |
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VECTOR; |
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typedef struct |
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{ |
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VECTOR duv[3]; |
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} |
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WARPPOINTS; |
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/* save all warping parameters for GMC once and for all, instead of |
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recalculating for every block. This is needed for encoding&decoding |
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When switching to incremental calculations, this will get much shorter |
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*/ |
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#define MBPRED_SIZE 15 |
/* we don't include WARPPOINTS wp here, but in FRAMEINFO itself */ |
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typedef struct |
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{ |
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int num_wp; /* [input]: 0=none, 1=translation, 2,3 = warping */ |
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/* a value of -1 means: "structure not initialized!" */ |
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int s; /* [input]: calc is done with 1/s pel resolution */ |
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int W; |
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int H; |
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int ss; |
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int smask; |
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int sigma; |
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int r; |
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int rho; |
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int i0s; |
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int j0s; |
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int i1s; |
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int j1s; |
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int i2s; |
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int j2s; |
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int i1ss; |
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int j1ss; |
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int i2ss; |
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int j2ss; |
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int alpha; |
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int beta; |
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int Ws; |
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int Hs; |
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int dxF, dyF, dxG, dyG; |
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int Fo, Go; |
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int cFo, cGo; |
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} GMC_DATA; |
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typedef struct _NEW_GMC_DATA |
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{ |
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/* 0=none, 1=translation, 2,3 = warping |
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* a value of -1 means: "structure not initialized!" */ |
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int num_wp; |
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/* {0,1,2,3} => {1/2,1/4,1/8,1/16} pel */ |
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int accuracy; |
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/* sprite size * 16 */ |
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int sW, sH; |
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/* gradient, calculated from warp points */ |
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int dU[2], dV[2], Uo, Vo, Uco, Vco; |
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void (*predict_16x16)(const struct _NEW_GMC_DATA * const This, |
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uint8_t *dst, const uint8_t *src, |
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int dststride, int srcstride, int x, int y, int rounding); |
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void (*predict_8x8) (const struct _NEW_GMC_DATA * const This, |
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uint8_t *uDst, const uint8_t *uSrc, |
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uint8_t *vDst, const uint8_t *vSrc, |
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int dststride, int srcstride, int x, int y, int rounding); |
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void (*get_average_mv)(const struct _NEW_GMC_DATA * const Dsp, VECTOR * const mv, |
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int x, int y, int qpel); |
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} NEW_GMC_DATA; |
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typedef struct |
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{ |
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uint8_t *y; |
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uint8_t *u; |
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uint8_t *v; |
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} |
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IMAGE; |
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typedef struct |
typedef struct |
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{ |
{ |
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// decoder/encoder |
uint32_t bufa; |
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uint32_t bufb; |
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uint32_t buf; |
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uint32_t pos; |
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uint32_t *tail; |
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uint32_t *start; |
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uint32_t length; |
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uint32_t initpos; |
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} |
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Bitstream; |
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#define MBPRED_SIZE 15 |
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typedef struct |
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{ |
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/* decoder/encoder */ |
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VECTOR mvs[4]; |
VECTOR mvs[4]; |
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uint32_t sad8[4]; // SAD values for inter4v-VECTORs |
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uint32_t sad16; // SAD value for inter-VECTOR |
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short int pred_values[6][MBPRED_SIZE]; |
short int pred_values[6][MBPRED_SIZE]; |
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int acpred_directions[6]; |
int acpred_directions[6]; |
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int mode; |
int mode; |
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int quant; // absolute quant |
int quant; /* absolute quant */ |
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int field_dct; |
int field_dct; |
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int field_pred; |
int field_pred; |
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int field_for_top; |
int field_for_top; |
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int field_for_bot; |
int field_for_bot; |
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// encoder specific |
/* encoder specific */ |
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VECTOR pmvs[4]; |
VECTOR pmvs[4]; |
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VECTOR qmvs[4]; /* mvs in quarter pixel resolution */ |
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int32_t sad8[4]; /* SAD values for inter4v-VECTORs */ |
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int32_t sad16; /* SAD value for inter-VECTOR */ |
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int32_t var16; /* Variance of the 16x16 luma block */ |
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int32_t rel_var8[6]; /* Relative variances of the 8x8 sub-blocks */ |
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int dquant; |
int dquant; |
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int cbp; |
int cbp; |
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} MACROBLOCK; |
/* lambda for these blocks */ |
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int lambda[6]; |
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static __inline int8_t get_dc_scaler(int32_t quant, uint32_t lum) |
/* bframe stuff */ |
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{ |
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int8_t dc_scaler; |
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if(quant > 0 && quant < 5) { |
VECTOR b_mvs[4]; |
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dc_scaler = 8; |
VECTOR b_qmvs[4]; |
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return dc_scaler; |
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} |
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if(quant < 25 && !lum) { |
VECTOR amv; /* average motion vectors from GMC */ |
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dc_scaler = (quant + 13) >> 1; |
int32_t mcsel; |
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return dc_scaler; |
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} |
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if(quant < 9) { |
VECTOR mvs_avg; //CK average of field motion vectors |
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dc_scaler = quant << 1; |
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return dc_scaler; |
/* This structure has become way to big! What to do? Split it up? */ |
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} |
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if(quant < 25) { |
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dc_scaler = quant + 8; |
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return dc_scaler; |
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} |
} |
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MACROBLOCK; |
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static __inline uint32_t |
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get_dc_scaler(uint32_t quant, |
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uint32_t lum) |
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{ |
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if (quant < 5) |
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return 8; |
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if (quant < 25 && !lum) |
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return (quant + 13) / 2; |
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if (quant < 9) |
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return 2 * quant; |
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if (quant < 25) |
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return quant + 8; |
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if(lum) |
if(lum) |
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dc_scaler = (quant << 1) - 16; |
return 2 * quant - 16; |
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else |
else |
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dc_scaler = quant - 6; |
return quant - 6; |
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} |
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return dc_scaler; |
/* useful macros */ |
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#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |
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#define MAX(X, Y) ((X)>(Y)?(X):(Y)) |
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/* #define ABS(X) (((X)>0)?(X):-(X)) */ |
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#define SIGN(X) (((X)>0)?1:-1) |
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#define CLIP(X,AMIN,AMAX) (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X)) |
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#define DIV_DIV(a,b) (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b)) |
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#define SWAP(_T_,A,B) { _T_ tmp = A; A = B; B = tmp; } |
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static __inline uint32_t |
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isqrt(unsigned long n) |
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{ |
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uint32_t c = 0x8000; |
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uint32_t g = 0x8000; |
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for(;;) { |
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if(g*g > n) |
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g ^= c; |
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c >>= 1; |
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if(c == 0) |
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return g; |
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g |= c; |
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} |
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} |
} |
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#endif /* _GLOBAL_H_ */ |
#endif /* _GLOBAL_H_ */ |